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science > yr8 chemistry autumn > Flashcards

yr8 chemistry autumn Flashcards

1
Q

what is the symbol for glucose

A

C6 H12 O6

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2
Q

how do you test for carbon dioxide?

A

put in limewater and if it turns cloudy then it’s CO2

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3
Q

what does recessive mean?

A

the less dominate gene e.g b

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4
Q

what is the formula for word equations

A

A + BC ——> AC + B

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5
Q

what is a displacement reaction

A

when an element “moves” another element out of place

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6
Q

how can we test for hydrogen

A

pops a lighted split

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7
Q

is Iron Oxide acidic or alkali?

A

alkali
metal oxide = alkali

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8
Q

what is the word equation for respiration

A

glucose + oxygen ——> carbon dioxide + water

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9
Q

true or false:
a base can neutralise an acid

A

true

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10
Q

what is the most reactive metal

A

potassium (K)

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11
Q

is sulphur oxide acidic or alkali?

A

acidic
non-metal = acidic

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12
Q

true or false:
if an element is soluble then it’s an acid

A

false alkali

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13
Q

what does soluble mean?

A

a substance that dissolves in a liquid

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14
Q

finish this word equation:
calcium carbonate + hydrochloric acid ——>

A

finish this word equation:
calcium carbonate + hydrochloric acid ——> calcium chloride + carbon dioxide + water

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15
Q

finish this word equation:
Magnesium + Oxygen ——>

A

Magnesium + Oxygen ——> Magnesium Oxide

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16
Q

finish this word equation:
magnesium + sulphuric acid ——>

A

magnesium + sulphuric acid ——> magnesium sulphate + hydrogen

17
Q

how do we test for oxygen?

A

we put a glowing splint into a test tube and if it lights on fire the 100% of what’s in the tube is oxygen

18
Q

where does respiration happen in the cell?

A

mitrocomnia

19
Q

finish this word equation:
hydrochloric acid + iron chloride ——>

A

finish this word equation:
hydrochloric acid + iron chloride ——> iron chloride + water

20
Q

what the process when an acid reacts with an alkali

A

neutralisation

21
Q

finish this word equation:
copper + water ——>

A

copper + water ——> copper hydroxide + hydrogen

22
Q

what is the least reactive metal

A

gold

23
Q

what happens when you inhale?

A

rib cage expands and ribs move up and diaphragm moves down

science (11 decks)

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